MCC §16.26C.1502
Roof slope and roof drain requirements
Read the official text at library.municode.com ↗This section sets rules for how roofs must be built to drain water. Roofs need a certain minimum slope unless they are designed to hold water. Roof drains must be placed at the lowest points of the roof unless the roof slopes to drain over the edges.
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The ordinance, as written (Maui County) — Section 1502 amended
A copy, taken August 21, 2026. The version published by Maui County is the one that governs, and it may have changed since. Check it before relying on anything here.
Section 1502 of the International Building Code is amended by adding new subsections
1502.5 Slope and 1502.6 Roof Drains to read as follows:
1502.5 Slope. Roof shall be sloped a minimum of 1 unit vertical in 48 units horizontal (2 percent
slope) for drainage unless designed for water accumulation in accordance with section
1611. Leaders, conductors, and storm drains shall be sized on the basis of Figure
1611.1 and the Plumbing Code.
1502.6 Roof drains. Unless roofs are sloped to drain over the roof edges, roof drains shall be installed
at each low point of the roof.
( Ord. No. 5508 , § 3, 2023)
Read the official text at library.municode.com ↗as published Nov 21, 2025our copy taken Aug 21, 2026
Published by the County of Maui through Municode.
LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.